Re: [patch for 2.6.29? 4/4] pata_it821x: resume from hibernation fails with RAID volume

[Jeff Garzik <jeff@garzik.org>]

akpm@linux-foundation.org wrote:
> From: Ondrej Zary <linux@rainbow-software.org>
> 
> Hibernation didn't work for me since I started to use IT8212 controller. 
> I did some debugging (booting with no_console_suspend init=/bin/sh).
> 
> Found that resume fails (2.6.28) with "serial number mismatch 'some
> garbage' != 'some other garbage'" and "revalidation failed" messages. 
> That's because the controller firmware fills different serial number in
> the IDENTIFY every boot.
> 
> The patch below fixes the resume simply clearing the serial number.  The
> proper fix would be probably to fill in the serial number of the RAID
> volume instead.  I assume that there must be something like that stored on
> the drives but I don't know where.
> 
> Fix resume on pata_it821x RAID volume by clearing the serial number in
> IDENTIFY data, which is otherwise different on each boot.
> 
> Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
> Cc: Jeff Garzik <jeff@garzik.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> ---
> 
>  drivers/ata/pata_it821x.c |    3 +++
>  1 file changed, 3 insertions(+)
> 

applied